Argentina’s government has opened an investigation into how Worldcoin [WLD] handles personal data, placing the blockchain project launched by OpenAI’s Sam Altman under formal scrutiny over its collection and use of biometric information.

Technology Overview

Worldcoin is presented as a blockchain initiative that links a digital identity layer to a crypto asset, with the project emphasizing “proof of personhood” as a core concept. The idea, highlighted by Ethereum’s [ETH] co-founder Vitalik Buterin, is that establishing a reliable way to distinguish real people from automated or duplicate accounts could help address persistent spamming problems. To enable this verification, the project asks participants to submit biometrics, placing sensitive personal information at the center of its approach to identity in Web3.

This model—connecting biometric enrollment to a crypto ecosystem—has drawn close attention from regulators and privacy practitioners. In Argentina, the focus is squarely on whether the project’s collection practices, consent mechanisms, retention periods, and security controls meet national data protection requirements for handling personal and biometric data.

Regulatory Action in Argentina

The Agency for Access to Public Information of Argentina (AAIP), the country’s data controller authority, is leading the probe. The process follows a complaint filed by Daniel Monastersky, a partner at Data Governance Latam and Director of the Center for Studies in Cybersecurity and Data Protection at Buenos Aires’s CEMA University. His complaint underscores the risks tied to a company requesting biometrics: uncontrolled access could expose users to privacy violations, unethical downstream uses, and heightened chances of breaches or unauthorized entry into databases.

Monastersky also points to concerns raised by the company’s biometric data disclaimer, arguing it leaves consumers with limited control over how their information might be used after collection. In response to these issues, AAIP sent a letter to the Worldcoin Foundation asking the organization to confirm that it is taking all necessary measures to protect the privacy of Argentinians who participate in the project.

AAIP has stated that the Worldcoin Foundation must follow procedures set out in Argentina’s Personal Data Protection Act. Specifically, the organization should register with AAIP; provide comprehensive details on how it treats collected data; explain the purposes for which data is required; and indicate how long the information will be stored. The agency has also requested a description of the security and confidentiality methods the project uses to safeguard personal information belonging to Argentine citizens.

Authorities added that, should the investigation uncover problems, the government will take appropriate steps to address them and ensure Worldcoin complies with applicable security and privacy standards.

How It Works

Worldcoin’s identity framework relies on biometric enrollment to verify that a participant is a unique individual. The system’s premise is straightforward: a one-time biometric check creates a basis to confirm personhood, after which a user can be recognized as a distinct participant within the project’s ecosystem. This approach aims to reduce spamming by making it harder to create multiple identities that could game distribution models or distort on-chain participation.

However, the reliance on biometrics means the project must clearly define how data flows through its systems. That includes specifying the purpose of collecting such sensitive information, setting strict timelines for retention, and implementing robust security and confidentiality protections. Argentina’s inquiry is designed to test whether all of these components are being executed in a way that aligns with national law and accepted privacy safeguards.

Industry Impact

Argentina’s action arrives as several other jurisdictions examine similar issues around Worldcoin. The United Kingdom’s Information Commissioner’s Office has said it is looking into the project. In France, the National Commission of Informatics and Liberty (CNIL) has publicly questioned the legality of Worldcoin’s biometric data collection. In Germany, the Bavarian State Office for Data Protection Supervision has been investigating the project since November 2022. Meanwhile, Kenya suspended Worldcoin’s local activities shortly after launch and authorities there later conducted a police raid at the project’s Nairobi center, seizing documents and equipment.

These developments reflect a common regulatory thread: when biometric identifiers are involved, data controllers must show that collection is lawful, proportionate, and secured against misuse. Argentina’s requirements—registration, transparency about processing, clarity of purpose, defined retention periods, and security disclosures—mirror the types of controls that have become central to global privacy oversight.

The debate is not limited to public agencies. Vitalik Buterin has noted that some of the privacy and ethical concerns raised about Worldcoin may be valid. At the same time, he points to the value of proof of personhood as a potential solution to the spamming problem that affects many online systems. That tension—between the promise of a more trustworthy identity layer for Web3 and the risks of entrusting biometrics to private projects—has defined the project’s reception across the crypto and privacy communities.

Critiques have also come from notable independent researchers. On-chain sleuth ZachXBT has accused Worldcoin of exploiting people from developing countries and warned that the project’s verification method could enable a market for black‑market accounts. The possibility that verified identities could be transferred or resold runs counter to the system’s intended purpose and further amplifies questions about oversight and enforcement.

Market Context

Worldcoin’s token, WLD, experienced immediate volatility around its debut. The asset rose to $2.15 right after launch on 24 July, then declined by nearly 20%. At press time referenced in the source material, WLD was trading at $1.75. The price action underscores how quickly market sentiment can shift in response to regulatory scrutiny, public commentary from prominent industry figures, and broader concerns about data governance in crypto projects that touch on identity.

Future Implications

Argentina’s probe sets a clear compliance checklist for Worldcoin within the country: formal registration with AAIP, disclosure of data handling practices, articulation of purpose, specification of retention timelines, and transparency around security and confidentiality measures. If the investigation reveals shortcomings, authorities have indicated they will intervene to enforce adherence to privacy and security standards.

More broadly, the case illustrates the conditions under which biometric‑based identity proposals may be evaluated in the Web3 context. The central question is whether projects can deliver proof of personhood benefits while maintaining user control and robust protections for highly sensitive data. With multiple countries now scrutinizing Worldcoin and influential voices acknowledging both the risks and the potential utility of the approach, the outcome of Argentina’s review will be closely watched as an indicator of how privacy regulators expect blockchain identity initiatives to operate.

For Worldcoin, addressing the concerns raised—both by authorities and independent researchers—will be essential to demonstrating that a proof‑of‑personhood system can coexist with stringent privacy expectations. The balance the project strikes between verification and data protection may shape not only its own trajectory, but also how future identity‑driven crypto systems are designed, deployed, and governed.